HC Deb 12 November 1930 vol 244 c1664
42. Captain MACDONALD

asked the Under-Secretary of State for Air what types of aircraft have been condemned or excluded from further use in Service flying, or on which pilots have made adverse reports, on account of wing-flutter or otherwise; and whether any machines of such types are still in use for Service flying and are permitted to be used in civilian flying services?


Cases of wing, aileron, or tail flutter have been reported in different types of aircraft, mostly experimental, from time to time. If such flutter has proved to be incurable the type has not been adopted for Service or civil use. One obsolescent type of Service aircraft which is potentially liable to flutter at extreme speeds is permitted to be flown only at speeds at which flutter does not in fact occur. No flutter is known to occur in any aircraft now holding a British certificate of airworthiness.

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